Dear Dennis, Cheasty Greenspace does not harbor many Chestnut-backed Chickadees, compared to Black-capped. The habitat is dense riparian woods with cleared-off areas decimated by developers building a mountain bike trail through the North Loop.

Nevertheless, Chestnut-backed Chickadees do occur here - and probably breed.

I'm not sure if we can detect a pattern, but here are our numbers for 2024 so far:

Chestnut-backed:
January: 3
February: 3
March: 7
April: 2
May: 5
June: 9
July: 4
Aug.: 5
Sept: 1
Oct. !

Black-capped in comparison:
January: 18
February: 38
March: 13
April: 26
May: 10
June: 12
July: 35
Aug.: 23
Sept.: 15
Oct. 26

- Connie, Seattle


> On Oct 28, 2024, at 5:36 PM, Dennis Paulson via Tweeters <tweeters at u.washington.edu> wrote:

>

> Hello tweets,

>

> Two of us, living several miles apart in Seattle, have noticed a substantial decline in Chestnut-backed Chickadees in our yards from their abundance this summer. Black-capped are still in the same numbers. Has anyone else seen this?

>

> Dennis Paulson

> Seattle

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